US2824977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and systems
Assignee: RCA Corp
•
Filing: 1954-12-24
•
Granted: 1958-02-25
•
Expires: 1974-12-24
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03H; H03H11/00; H03H11/02; H03H11/26; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |